Personalized That's right! You're my best friend! Women's Plus Size T-Shirt. Show off your bestie with That's right! You're my best friend! Women's Plus Size T-Shirt - Heather and Hot Pink, featuring Dog and Mouse from the children's book "Dog and Mouse" by Michelle Nelson-Schmidt. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)